Brianna is getting materials for a chemistry experiment. Her teacher gives her a container that has 0.25 liter of a liquid in it
1 answer:
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Answer:
c=36
Step-by-step explanation:
- Because
can be rewritten as
, finding the value of c so that x=(+-)12 solves this equation it means to find the value of c so that
.
- Because
, we must find c so that
.
- Because
, c=36.
- To check, replace c=36 in the initial equation, and check it is a solution for x=(+-)12.
The correct answer is b), or x² = -12y.
Explanation:
This equation may be written in standard form as
The coefficient in front of x² is negative so the curve is downward.
The vertex has coordinates (0,0).
The vertex is equidistant from the directrix and the focus, so the focus is (0, -3).
Explanation:
This equation may be written in standard form as
The coefficient in front of x² is negative so the curve is downward.
The vertex has coordinates (0,0).
The vertex is equidistant from the directrix and the focus, so the focus is (0, -3).